普米克令舒为单剂量包装，其优势体现在下列哪些方面？（）
A.使用方便
B.剂量准确
C.价格便宜
D.防止院内感染
参考答案：A, B, D
It is quite impossible for people to do work in a day.
A．such little, such much
B．such few, so much
C．so few, so much
D．so few, so little
